L10 smokes and blows oil

I have a 95 Ford L9000 and it is smoking pretty bad. It smokes while accelerating and while at idle. I noticed today oil is coming out of the turbo charger tube and out of the manifold. When cold starting it takes about 10 minutes before it starts to smoke. Sometimes it is white and sometimes it is a dark gray. It tends to stumble / skip at an idle and sometimes a hear a little pop sound while the smoke comes out.
The oil looks good and I haven't lost any coolant.

I brought it to 3 repair shops and they say it is normal,however they always seem to find a big list of repairs non engine related that they wanna fix. So I can't seem to find an honest mechanic. It's almost like there afraid to even try to fix this problem.

So I'm going to attempt to repair this truck myself. it does have 590,000 on it so maybe it's time to replace the engine

 

why would oil come out of the turbo vent tube? It does sound sluggish while idling. it also comes out after being run pretty good to. When it's just idling it only smokes every few minutes.

Oil pressure looks great and when your pulling a load the engine has plenty of life. This truck was a tractor conversion. It has a dump body and I use it to haul my case 580 backhoe.

It's just smoking way to much throughout the power band now. I'm just waiting to get pulled over by the DMV police.

I've had trucks in the past that did this type of thing but the oil pressure was bad. they would lose coolant and they had hardly any power. basically they needed rebuilds and they all were in the 900,000 mile range

 

It's a tube on the driver side above the fuel filter. Oil will drip out from there then it will come out of the manifold between the first two cylinders.

Only happens when really working the engine,but smoke blows out during acceleration and every few minutes while idling. Kind of at a loss I don't have a diesel background only gas engines

 

I'm begining to think it's an injector issue however the drips on the ground both look and feel the same. looks lite brown almost yellow and feels slick like oil. Would over fueling make the engine push out oil. Also what can I do to keep oil from coming out of the tube? if DOT inspectors see that they will red tag the truck for sure

 

okay now i'm getting constant blue and white smoke coming out with a poping sound that is in time with the puffing of smoke every 20 seconds. there is no signs of fuel in the oil. kind of at a loss. i've been getting mixed info about the problem and the 5 shops i called to ask about repairing it don't want to touch it. I wish i never bought this truck it's very depressing